Team Coolspeedbot: first feather weight robot

[Coolspeedbot]

same here

[Coolspeedbot]

So after another session of trying to cut the HPDE I decided to reassess the design of the back of the robot as there has been issues. Originally the back of the frame indented slightly to hold the armour were as the front had the armour resting on it so I adjusted the back, removing the indent and made it easier to cut.

[daveimi]

That's pretty much a perfect edge.

[Coolspeedbot]

Edge? not sure what you mean.

[daveimi]

*wedge

[Coolspeedbot]

Oh I see, well hopefully it will be.

[lowndsy]

What is your wedge tip made of? I'm struggling to get a lasting sharp wedge with HDPE so will need to add a metal end when I know how much weight I have to play with.

[Coolspeedbot]

What is your wedge tip made of? I'm struggling to get a lasting sharp wedge with HDPE so will need to add a metal end when I know how much weight I have to play with.

the plan is to use Hardox plates, the real robot's wedge won't be as sharp and be more rounded as to avoid it catching on the plates of the arena floor

[Coolspeedbot]

A small achievement with the bodywork, one motor mounted.

[R9000]

Ooh I'm getting excited - can't wait to see how this turns out.

[Coolspeedbot]

You're not the only one

[Coolspeedbot]

Started using the second HPDE sheet (Hopefully not waste all of it this time)
I have taken a new approach to making the side sections of the frame, with hole placement and shape. Using some spare polycarb to make the template.



On another note I got two Botbits 85A V2 from Ranglebox the other week, couple of 50A maxi blade fuses, all I need is the battery, I am looking at a 4s lipo like this: https://hobbyking.com/en_us/turnigy-...lipo-pack.html. But is it overkill for 12volt motors? I know that, a cost of a shorter life, motors can be over volted by a small amount.

Weapons:

Now there was a comment about Wolf-E getting a later upgrade, a weapon, err... might need a whole redesign just to fit one (which I'm working on) question is... spinner, lifter or axe? I will say my weapon of choice was not included (pneumatic flipper). So basically I'm left with weapons that are run by motors. But thats a future problem.

[R9000]

To be honest, I highly doubt the extra 2.8v will make a huge difference to your motor life. I run a 5s 60C lipo with about twice the mAh, with four 18v motors and a brushless for the lifter. Since you're only running two motors and no weapon, I think that battery should be fine.

You say you're using polycarb for a template, but why not just print or draw it onto a piece of paper and (temporarily) glue it onto the HDPE? I'd think it'd be cheaper and easier to cut through. I know you're not cutting the poly itself, but I expect you'll rough the edges up if you're cutting along them.

[Coolspeedbot]

To be honest, I highly doubt the extra 2.8v will make a huge difference to your motor life. I run a 5s 60C lipo with about twice the mAh, with four 18v motors and a brushless for the lifter. Since you're only running two motors and no weapon, I think that battery should be fine.

You say you're using polycarb for a template, but why not just print or draw it onto a piece of paper and (temporarily) glue it onto the HDPE? I'd think it'd be cheaper and easier to cut through. I know you're not cutting the poly itself, but I expect you'll rough the edges up if you're cutting along them.

I don't cut the HPDE with the polycarb on top I use it to draw out the shape and mark the holes for drilling, I then cut out the shape and drill the holes.

[R9000]

Ahh fair enough then.